---
title: "Discussion on \"What Is an Instruction?\" | Hashnode"
description: "Discussion on \"What Is an Instruction?\". Learn what CPU instructions are, including opcodes, operands, machine instructions, and the fetch-decode-execute cycle."
url: "https://hashnode.com/posts/what-is-an-instruction/6a81081c16e44efcd2d4321c"
---

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# [What Is an Instruction?](https://sagunwrites.hashnode.dev/what-is-an-instruction?utm_source=hashnode&utm_medium=feed)

Learn what CPU instructions are, including opcodes, operands, machine instructions, and the fetch-decode-execute cycle.

Aug 16 · 5 min read · sagunwrites.hashnode.dev  
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-   [#computer-organization](https://hashnode.com/tag/computer-organization)
-   [#computer-architecture](https://hashnode.com/tag/computer-architecture)
-   [#coa](https://hashnode.com/tag/coa)
-   [#cpu-instructions](https://hashnode.com/tag/cpu-instructions)
-   [#instruction-set-architecture](https://hashnode.com/tag/instruction-set-architecture)
-   [#opcode](https://hashnode.com/tag/opcode)
-   [#operands](https://hashnode.com/tag/operands)
-   [#instruction-cycle](https://hashnode.com/tag/instruction-cycle)

## Written by

[Sagun](https://hashnode.com/@sagun-labs)

@sagun-labs · Mumbai, India

  
[View profile](https://hashnode.com/@sagun-labs)

Computer Science Student & Technical Writer

Computer Science student focused on systems programming, Linux, cybersecurity, and software development. I write technical articles and build projects to deepen my understanding of computer systems while documenting my learning journey.

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